SAM '1'

Oil // district 9 // lease#18523

op: ENDEAVOR ENERGY RESOURCES L.P.

cum_oil

40k BBL

cum_gas

0 MCF

wells

1

production

2013-06 — 2026-03

peak_month

2013-07

-- production_history

cum_oil: 40,434 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

422 BBL/mo

Di (annual)

10.3%

b-factor

0.0

EUR

48,838 BBL

R-squared

0.386

type

exponential

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
8STANDARD OIL PRODUCTION COMPANY312,0002013-04-02
EOF // data source: Texas Railroad Commission // 2026